Home / 1,432,913.12-1,977,348.28-788,316.76

Finding the Fourth Proportional to 1,432,913.12, 1,977,348.28 and 788,316.76

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Solution

The fourth proportional to 1,432,913.12, 1,977,348.28 and 788,316.76 is: 1,087,837.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,913.12 : 1,977,348.28 = 788,316.76 : x
  2. Step 2: Convert to fraction form
    1,432,913.12/1,977,348.28 = 788,316.76/x
  3. Step 3: Cross multiply
    1,432,913.12x = 1,977,348.28 × 788,316.76
  4. Step 4: Simplify right side
    1,432,913.12x = 1,558,776,789,481.17
  5. Step 5: Solve for x
    x = 1,558,776,789,481.17/1,432,913.12
  6. Step 6: Final answer
    x = 1,087,837.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.